TWI565540B - Method for cooling roller of run-out table area and rolling system thereof - Google Patents
Method for cooling roller of run-out table area and rolling system thereof Download PDFInfo
- Publication number
- TWI565540B TWI565540B TW105103044A TW105103044A TWI565540B TW I565540 B TWI565540 B TW I565540B TW 105103044 A TW105103044 A TW 105103044A TW 105103044 A TW105103044 A TW 105103044A TW I565540 B TWI565540 B TW I565540B
- Authority
- TW
- Taiwan
- Prior art keywords
- cooling
- temperature
- preset
- mode
- equal
- Prior art date
Links
Landscapes
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Description
本發明是有關於一種對傳送輥的冷卻方法，且特別是有關於一種軋延系統中層流冷卻區傳送輥的冷卻方法與使用此方法的軋延系統。 The present invention relates to a method of cooling a transfer roll, and more particularly to a method of cooling a laminar cooling zone transfer roll in a rolling system and a rolling system using the same.
熱軋鋼廠之層流冷卻設備位於熱連軋機後方，目的在於將高溫的鋼帶透過水冷快速冷卻。此冷卻設備可再區分為噴頭、以及負責傳送鋼帶的傳送輥。因為與高溫鋼帶接觸的關係，傳送輥必須進行適當的冷卻，以避免輥面損壞。在一些習知技術中，是在每捲鋼捲生產的空檔，利用噴頭來噴灑冷卻水，對傳送輥進行固定水量的冷卻工作。然而此種控制模式是對所有生產條件施以相同水量，常導致浪費水資源，也可能因為過度冷卻，造成輥面濕滑，對下一捲鋼帶的傳送造成不良影響。相反地，如果水量不足，則可能會造成傳送輥損傷。因此，如何提出一個更有效的冷卻方法，為此領域的技術人員所關心的議題。 The laminar cooling equipment of the hot rolling mill is located behind the hot strip mill and aims to rapidly cool the high temperature steel strip through water cooling. This cooling device can be further divided into a spray head and a transfer roller responsible for conveying the steel strip. Because of the contact with the high temperature steel strip, the transfer roller must be properly cooled to avoid roll surface damage. In some conventional techniques, in the neutral production of each coil of steel, the nozzle is used to spray the cooling water, and the conveying roller is cooled by a fixed amount of water. However, this control mode applies the same amount of water to all production conditions, often resulting in wasted water resources, or may be caused by excessive cooling, resulting in a slippery surface of the roll, which adversely affects the conveyance of the next roll of steel strip. Conversely, if the amount of water is insufficient, the transfer roller may be damaged. Therefore, how to propose a more effective cooling method is a topic of concern to those skilled in the field.
本發明實施例提出一種層流冷卻區傳送輥的冷卻方法。此層流冷卻區包括多個上噴水模組與多個下噴水模組。冷卻方法包括：在目前軋延材料的尾端通過層流冷卻區以後，根據目標溫度取得對應上噴水模組與下噴水模組的冷卻模式；根據下個軋延材料的厚度計算出冷卻時間；以及根據冷卻模式與冷卻時間來控制上噴水模組與下噴水模組。 Embodiments of the present invention provide a method of cooling a laminar cooling zone transfer roll. The laminar flow cooling zone includes a plurality of upper water spray modules and a plurality of lower water spray modules. The cooling method comprises: after passing the laminar cooling zone at the end of the current rolling material, obtaining a cooling mode corresponding to the upper water spray module and the lower water spray module according to the target temperature; calculating a cooling time according to the thickness of the next rolling material; And controlling the upper spray module and the lower spray module according to the cooling mode and the cooling time.
在一些實施例中，冷卻模式包括：第一模式，用以啟動下噴水模組；第二模式，用以啟動上噴水模組；以及第三模式，用以啟動下噴水模組與上噴水模組。 In some embodiments, the cooling mode includes: a first mode for starting the lower water spray module; a second mode for starting the upper water spray module; and a third mode for starting the lower spray module and the upper spray mold group.
在一些實施例中，上述的目標溫度是根據軋延材料的規格所取得的目標盤捲溫度。上述根據目標溫度取得冷卻模式的步驟更包括：若目標溫度小於第一預設溫度，啟動第一模式；若目標溫度大於等於第一預設溫度且小於第二預設溫度，啟動第二模式，其中第二預設溫度大於等於第一預設溫度；以及若目標溫度大於等於第二預設溫度，啟動第三模式。 In some embodiments, the target temperature described above is a target coil temperature obtained according to the specifications of the rolled material. The step of obtaining the cooling mode according to the target temperature further includes: starting the first mode if the target temperature is less than the first preset temperature; and starting the second mode if the target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, The second preset temperature is greater than or equal to the first preset temperature; and if the target temperature is greater than or equal to the second preset temperature, the third mode is activated.
在一些實施例中，上述根據下個軋延材料的厚度計算出冷卻時間的步驟包括：若厚度小於第一預設厚度，設定冷卻時間為第一預設時間；若厚度大於等於第一預設厚度且小於第二預設厚度，設定冷卻時間為第二預設時間；以及若厚度大於等於第二預設厚度，設定冷卻時間為第三預設時間。其中第二預設厚度大於等於第一預設厚度，第三預設 時間大於等於第二預設時間，且第二預設時間大於等於第一預設時間。 In some embodiments, the step of calculating the cooling time according to the thickness of the next rolling material comprises: setting the cooling time to a first preset time if the thickness is less than the first predetermined thickness; and if the thickness is greater than or equal to the first preset The thickness is less than the second predetermined thickness, and the set cooling time is the second preset time; and if the thickness is greater than or equal to the second predetermined thickness, the set cooling time is the third preset time. The second preset thickness is greater than or equal to the first preset thickness, and the third preset The time is greater than or equal to the second preset time, and the second preset time is greater than or equal to the first preset time.
在一些實施例中，冷卻方法更包括冷卻時間補償修正機制：若目標溫度大於等於第一預設溫度且小於第二預設溫度，計算目標溫度與第三預設溫度之間的溫度差，並且根據溫度差來調整冷卻時間。 In some embodiments, the cooling method further includes a cooling time compensation correction mechanism: if the target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, calculating a temperature difference between the target temperature and the third preset temperature, and The cooling time is adjusted according to the temperature difference.
本發明的實施例提出一種軋延系統，包括精軋機、捲機、層流冷卻區與控制模組。層流冷卻區是設置於精軋機與捲機之間，層流冷卻區包括傳送輥、上噴水模組與下噴水模組。控制模組用以在目前軋延材料的尾端通過層流冷卻區以後，根據目標溫度取得對應上噴水模組與下噴水模組的冷卻模式。控制模組也用以根據下個軋延材料的厚度計算出冷卻時間，並且根據冷卻模式與冷卻時間來控制上噴水模組與下噴水模組。 Embodiments of the present invention provide a rolling system including a finishing mill, a coiler, a laminar cooling zone, and a control module. The laminar cooling zone is disposed between the finishing mill and the coiler, and the laminar cooling zone includes a conveying roller, an upper water spray module and a lower water spray module. The control module is configured to obtain a cooling mode corresponding to the upper water spray module and the lower water spray module according to the target temperature after the tail end of the current rolling material passes through the laminar cooling zone. The control module is also used to calculate the cooling time according to the thickness of the next rolling material, and control the upper water spray module and the lower water spray module according to the cooling mode and the cooling time.
在一些實施例中，若目標溫度小於第一預設溫度，控制模組啟動第一模式。若目標溫度大於等於第一預設溫度且小於第二預設溫度，控制模組啟動第二模式。若目標溫度大於等於第二預設溫度，控制模組啟動第三模式。其中第二預設溫度大於等於第一預設溫度。 In some embodiments, the control module activates the first mode if the target temperature is less than the first predetermined temperature. If the target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, the control module starts the second mode. If the target temperature is greater than or equal to the second preset temperature, the control module starts the third mode. The second preset temperature is greater than or equal to the first preset temperature.
在一些實施例中，若厚度小於第一預設厚度，控制模組設定冷卻時間為第一預設時間。若厚度大於等於第一預設厚度且小於第二預設厚度，控制模組設定冷卻時間為第二預設時間。若厚度大於等於第二預設厚度，控制模組設定冷卻時間為第三預設時間。其中第二預設厚度大於等於第 一預設厚度，第三預設時間大於等於第二預設時間，且第二預設時間大於等於第一預設時間。 In some embodiments, if the thickness is less than the first predetermined thickness, the control module sets the cooling time to a first preset time. If the thickness is greater than or equal to the first predetermined thickness and less than the second predetermined thickness, the control module sets the cooling time to the second preset time. If the thickness is greater than or equal to the second predetermined thickness, the control module sets the cooling time to a third preset time. Where the second predetermined thickness is greater than or equal to the first a preset thickness, the third preset time is greater than or equal to the second preset time, and the second preset time is greater than or equal to the first preset time.
在一些實施例中，若目標溫度大於等於第一預設溫度且小於第二預設溫度，控制模組計算目標溫度與第三預設溫度之間的溫度差，並且根據此溫度差來調整冷卻時間。 In some embodiments, if the target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, the control module calculates a temperature difference between the target temperature and the third preset temperature, and adjusts the cooling according to the temperature difference. time.
為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。 The above described features and advantages of the invention will be apparent from the following description.
100‧‧‧軋延系統 100‧‧‧Rolling system
110‧‧‧精軋機 110‧‧‧ finishing mill
112、113‧‧‧軋延材料 112, 113‧‧‧ rolling materials
120‧‧‧層流冷卻區 120‧‧‧Laminar cooling zone
121‧‧‧傳送輥 121‧‧‧Transfer roller
122‧‧‧下噴水模組 122‧‧‧Under water spray module
123‧‧‧上噴水模組 123‧‧‧Upper water spray module
124‧‧‧溫度感測器 124‧‧‧Temperature Sensor
130‧‧‧捲機 130‧‧‧Volume
140‧‧‧控制模組 140‧‧‧Control Module
S201~S203‧‧‧步驟 S201~S203‧‧‧Steps
[圖1]是根據一實施例繪示軋延系統的示意圖。 FIG. 1 is a schematic view showing a rolling system according to an embodiment.
[圖2]是根據一實施例繪示冷卻方法的流程圖。 FIG. 2 is a flow chart showing a cooling method according to an embodiment.
關於本文中所使用之『第一』、『第二』、...等，並非特別指次序或順位的意思，其僅為了區別以相同技術用語描述的元件或操作。另外，在圖式或描述中，相似或相同的部分是使用相同之符號或編號，且圖式僅以說明為目的，並未依照原尺寸作圖。 The terms "first", "second", "etc." used in this document are not intended to mean the order or the order, and are merely to distinguish between elements or operations described in the same technical terms. In the drawings, the same or the same reference numerals are used for the same or the same.
圖1是根據一實施例繪示軋延系統的示意圖。請參照圖1，軋延系統100至少包括精軋機110、層流冷卻區120與捲機130。層流冷卻區120中設置有多個傳送輥121、多個下噴水模組122、多個上噴水模組123與多個溫度感測 器(例如溫度感測器124)。在此實施例中，軋延系統100是設置於鋼廠，軋延材料112為下個鋼帶，軋延材料113為尾端已出層流冷卻之鋼帶。然而，在其他實施例中，軋延系統100也可以設置於鋁廠或其他金屬廠，軋延材料可以是鋁帶或是其他金屬帶，本發明並不在此限。另外，為了簡化起見，圖1並沒有繪示出軋延系統100的所有元件，實作上可能有多個精軋機110，精軋機110之前還可設置粗軋機(未繪示)。下噴水模組122與上噴水模組123例如為可控制的水閥，但本發明並不在此限，另外本發明也不限制傳送輥121、下噴水模組122與上噴水模組123的數目。控制模組140是電性連接至下噴水模組122、上噴水模組123與溫度感測器124。在此實施例中，控制模組140是實作為軟體，此軟體會被載入至電腦以執行，但在另一實施例中控制模組140也可以被實作為硬體(例如可程式電路)，本發明並不在此限。 1 is a schematic diagram showing a rolling system in accordance with an embodiment. Referring to FIG. 1, the rolling system 100 includes at least a finishing mill 110, a laminar cooling zone 120 and a winder 130. The laminar cooling zone 120 is provided with a plurality of conveying rollers 121, a plurality of lower water spray modules 122, a plurality of upper water spray modules 123 and a plurality of temperature sensing (eg temperature sensor 124). In this embodiment, the rolling system 100 is disposed in a steel mill, the rolling material 112 is the next steel strip, and the rolling material 113 is a steel strip that has been laminar cooling at the end. However, in other embodiments, the rolling system 100 may also be disposed in an aluminum factory or other metal factory, and the rolling material may be an aluminum strip or other metal strip, and the invention is not limited thereto. In addition, for the sake of simplicity, FIG. 1 does not show all the components of the rolling system 100. Actually, there may be a plurality of finishing mills 110, and a finishing mill 110 may also be provided with a roughing mill (not shown). The lower water spray module 122 and the upper water spray module 123 are, for example, controllable water valves, but the present invention is not limited thereto, and the present invention does not limit the number of the transport roller 121, the lower water spray module 122 and the upper water spray module 123. . The control module 140 is electrically connected to the lower water spray module 122, the upper water spray module 123 and the temperature sensor 124. In this embodiment, the control module 140 is implemented as a software, and the software is loaded into the computer for execution. However, in another embodiment, the control module 140 can also be implemented as a hardware (for example, a programmable circuit). The invention is not limited thereto.
軋延材料113是經過精軋機110加工後，所產生之鋼帶，並通過層流冷卻區120來降低溫度，溫度感測器124會偵測鋼帶的盤捲溫度，最後由捲機130製作成鋼捲。軋延材料112是下一個準備要進入精軋機之軋延材料。在此實施例中，控制模組140會根據尾端已出層流冷卻之軋延材料113的規格(例如盤捲溫度)以及下一個要進入層流冷卻區之軋延材料112的規格(例如厚度)來控制下噴水模組122與上噴水模組123來冷卻層流冷卻區之傳動輥。在上述控制中是依狀況不同而機動性地調整冷卻水量而非每次冷卻都固 定水量，使得不會造成水資源的浪費，但又能得到冷卻傳送輥的目的。 The rolling material 113 is a steel strip produced after being processed by the finishing mill 110, and is cooled by the laminar cooling zone 120. The temperature sensor 124 detects the coiling temperature of the steel strip, and finally is produced by the winding machine 130. Steel coils. Rolling material 112 is the next rolling material to be placed into the finishing mill. In this embodiment, the control module 140 will be based on the specification of the rolled material 113 (eg, the coil temperature) that has been laminar cooled at the trailing end and the specification of the rolling stock 112 that is to enter the laminar cooling zone (eg, The thickness is used to control the lower water spray module 122 and the upper water spray module 123 to cool the drive roller of the laminar flow cooling zone. In the above control, the amount of cooling water is adjusted flexibly depending on the situation, not every cooling. The amount of water is set so that no waste of water resources is caused, but the purpose of cooling the conveying rolls can be obtained.
具體來說，在目前軋延材料113的尾端通過層流冷卻區120，且下一個軋延材料112還沒有到達精軋機110時，此時有空檔來冷卻傳送輥121。在一些實施例中，控制模組140是根據溫度感測器124所偵測的溫度來判斷軋延材料113的尾端是否通過層流冷卻區120，舉例來說，鋼帶的長度是已知而溫度感測器124會每隔一段固定距離偵測一次盤捲溫度，因此可以根據溫度感測器124所偵測到的盤捲溫度的數目來判斷軋延材料113是否已全部進入捲機130。在其他的實施例中，軋延系統100中也可以設置光感測器，用以判斷軋延材料113的尾端是否通過層流冷卻區120。或者，溫度感測器124也可以搭配其他電路使用，當判斷出軋延材料113的尾端通過層流冷卻區120時會傳送一個觸發訊號給控制模組140。本發明並不限制如何判斷軋延材料113的尾端是否通過層流冷卻區120。 Specifically, at the end of the current rolling material 113 passing through the laminar cooling zone 120, and the next rolling material 112 has not yet reached the finishing mill 110, there is a gap to cool the conveying roller 121. In some embodiments, the control module 140 determines whether the trailing end of the rolled material 113 passes through the laminar cooling zone 120 based on the temperature detected by the temperature sensor 124. For example, the length of the steel strip is known. The temperature sensor 124 detects the coil temperature every fixed distance. Therefore, whether the rolling material 113 has completely entered the winding machine 130 can be determined according to the number of coil temperatures detected by the temperature sensor 124. . In other embodiments, a light sensor may also be disposed in the rolling system 100 to determine whether the trailing end of the rolled material 113 passes through the laminar cooling zone 120. Alternatively, the temperature sensor 124 can also be used in conjunction with other circuits. When it is determined that the trailing end of the rolling material 113 passes through the laminar cooling zone 120, a trigger signal is transmitted to the control module 140. The present invention does not limit how to judge whether the trailing end of the rolled material 113 passes through the laminar cooling zone 120.
在軋延材料113的尾端通過層流冷卻區120以後，控制模組140會根據一個目標溫度來取得對應下噴水模組122與上噴水模組123的冷卻模式。在一些實施例中，此目標溫度是根據軋延材料113的規格所取得的目標盤捲溫度，例如為600℃，但本發明並不限制此數值。或者，目標溫度也可以根據層流冷卻區120中溫度感測器所偵測的溫度所計算出，舉例來說，溫度感測器124會取得多個鋼帶的盤捲溫度，控制模組140可以計算這些盤捲溫度的平均值以 作為上述的目標溫度。基本上，當目標溫度越高時，則需要越多的水量，也就是需要啟動越多的噴水模組。在此實施例中，目標溫度可分為高目標溫度、中目標溫度與低目標溫度，而冷卻模式則有三種可能，分別為：第一模式，用以啟動下噴水模組122；第二模式，用以啟動上噴水模組123；以及第三模式，用以同時啟動下噴水模組122與上噴水模組123。目標溫度與冷卻模式的對應關係可參考以下表1。 After the trailing end of the rolling material 113 passes through the laminar cooling zone 120, the control module 140 obtains the cooling mode corresponding to the lower water spray module 122 and the upper water spray module 123 according to a target temperature. In some embodiments, the target temperature is a target coil temperature obtained according to the specification of the rolled material 113, for example, 600 ° C, but the present invention is not limited to this value. Alternatively, the target temperature may also be calculated according to the temperature detected by the temperature sensor in the laminar cooling zone 120. For example, the temperature sensor 124 may obtain the coil temperature of the plurality of steel strips, and the control module 140 You can calculate the average of these coil temperatures to As the above target temperature. Basically, the higher the target temperature, the more water is needed, that is, the more water spray modules need to be activated. In this embodiment, the target temperature can be divided into a high target temperature, a medium target temperature, and a low target temperature, and the cooling mode has three possibilities, namely: a first mode for starting the lower water spray module 122; the second mode The first water spray module 123 is activated, and the third mode is used to simultaneously activate the lower water spray module 122 and the upper water spray module 123. The correspondence between the target temperature and the cooling mode can be referred to Table 1 below.
詳細來說，控制模組140會判斷目標溫度是落在哪一個溫度區間。若目標溫度小於第一預設溫度，則控制模組140會啟動第一模式；若目標溫度大於等於第一預設溫度且小於第二預設溫度，則控制模組140會啟動第二模式；若目標溫度大於等於第二預設溫度，則控制模組140會啟動第三模式。其中第二預設溫度是大於等於第一預設溫度，例如，第一預設溫度為460℃而第二預設溫度為680℃，但本 發明並不限制第一預設溫度與第二預設溫度為多少。 In detail, the control module 140 determines which temperature interval the target temperature falls within. If the target temperature is less than the first preset temperature, the control module 140 starts the first mode; if the target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, the control module 140 starts the second mode; If the target temperature is greater than or equal to the second preset temperature, the control module 140 activates the third mode. The second preset temperature is greater than or equal to the first preset temperature, for example, the first preset temperature is 460 ° C and the second preset temperature is 680 ° C, but The invention does not limit what the first preset temperature and the second preset temperature are.
另一方面，控制模組140會根據下個軋延材料的厚度計算出冷卻時間。基本上，若下個軋延材料較厚則可以是較長的冷卻時間，若下個軋延材料較薄則可用較短的冷卻時間，避免傳送輥121太潮濕打滑。舉例來說，下個軋延材料的厚度也可以被分為三個範圍，此厚度與冷卻時間之間的對應關係可參考表2。 On the other hand, the control module 140 calculates the cooling time based on the thickness of the next rolled material. Basically, if the next rolling material is thicker, it may be a longer cooling time. If the next rolling material is thin, a shorter cooling time may be used to prevent the conveying roller 121 from being too wet and slippery. For example, the thickness of the next rolled material can also be divided into three ranges, and the correspondence between the thickness and the cooling time can be referred to Table 2.
具體來說，若下個軋延材料的厚度小於第一預設厚度，控制模組140會設定冷卻時間為第一預設時間；若此厚度大於等於第一預設厚度且小於第二預設厚度，則控制模組140會設定冷卻時間為第二預設時間；若此厚度大於等於第二預設厚度，則控制模組140會設定冷卻時間為第三預設時間。其中第二預設厚度大於等於第一預設厚度，第三預設時間大於等於第二預設時間，且第二預設時間大於等於第一預設時間。舉例來說，第一預設厚度為1.7mm，第二預設厚度為12mm，第一預設時間為8秒，第二預設時間為10秒，第三預設時間為11秒，但本發明並不限制這些數值為多少。 Specifically, if the thickness of the next rolled material is less than the first predetermined thickness, the control module 140 sets the cooling time to a first preset time; if the thickness is greater than or equal to the first preset thickness and less than the second preset For the thickness, the control module 140 sets the cooling time to a second preset time; if the thickness is greater than or equal to the second predetermined thickness, the control module 140 sets the cooling time to a third preset time. The second preset thickness is greater than or equal to the first preset thickness, the third preset time is greater than or equal to the second preset time, and the second preset time is greater than or equal to the first preset time. For example, the first preset thickness is 1.7 mm, the second preset thickness is 12 mm, the first preset time is 8 seconds, the second preset time is 10 seconds, and the third preset time is 11 seconds, but the present The invention does not limit how many of these values are.
在決定出冷卻模式與冷卻時間以後，控制模式140便會根據冷卻模式與冷卻時間來控制上噴水模組123與下噴水模組122。例如，控制模組140可以啟動一個計時器開始倒數，在倒數的期間則會啟動對應的噴水模組，但本發明並不限於此實作方式。 After determining the cooling mode and the cooling time, the control mode 140 controls the upper water spray module 123 and the lower water spray module 122 according to the cooling mode and the cooling time. For example, the control module 140 can start a timer to start the countdown, and the corresponding water spray module is activated during the countdown period, but the invention is not limited to this embodiment.
在一些實施例中，上述的表1與表2可以在生產鋼捲前先建立好，成為一或多個表單，如此一來在生產鋼捲時控制模組140便可以用查詢表單的方式來取得冷卻模式與冷卻時間。然而，在一些實施例中，上述表1與表2的內容也可以實作為程式碼，實作在控制模組140當中，本發明並不在此限。另一方面，上述冷卻模式與冷卻時間的判定僅是一範例，本領域具有通常知識者當可依據上述教示而設計出其他的判定方式。例如，目標溫度可以分為更多或更少的溫度區間，而冷卻模式可以根據噴水模組的數目來區分，只要當目標溫度更高時啟動更多的噴水模組即可。或者，下一個軋延材料的厚度可分為更多或更少的厚度區間，而每個厚度則對應至一個冷卻時間，厚度較薄者冷卻時間不要太長以避免鋼帶軋延時打滑。或者，可以事先蒐集多筆厚度與冷卻時間，並根據這些資料利用迴歸演算法來取得一個函數，之後便可以將厚度帶入至此函數來取得冷卻時間。 In some embodiments, Tables 1 and 2 above may be established prior to the production of the steel coil to form one or more forms, so that the control module 140 can use the query form when producing the steel coil. Get the cooling mode and cooling time. However, in some embodiments, the contents of Tables 1 and 2 above may also be implemented as a code, which is implemented in the control module 140, and the present invention is not limited thereto. On the other hand, the determination of the above cooling mode and cooling time is merely an example, and those skilled in the art can design other determination methods according to the above teachings. For example, the target temperature can be divided into more or less temperature intervals, and the cooling mode can be distinguished according to the number of water spray modules, as long as more water spray modules are activated when the target temperature is higher. Alternatively, the thickness of the next rolled material can be divided into more or less thickness intervals, and each thickness corresponds to one cooling time, and the thinner thickness should not be too long to avoid slippage of the strip rolling. Alternatively, multiple thicknesses and cooling times can be collected in advance, and a regression function can be used to obtain a function based on these data, and then the thickness can be brought to this function to obtain the cooling time.
在一些實施例中，上述表1中第一預設溫度與第二預設溫度之間的差異很大，因此可以對中目標溫度的情形再做冷卻時間的補償。具體來說，若目標溫度大於等於第一預設溫度且小於第二預設溫度，則控制模組140會計算目標 溫度與第三預設溫度之間的一個溫度差。此第三預設溫度是介於第一預設溫度與第二預設溫度之間，例如為570℃，此溫度為中目標溫度範圍的中間值，但在其他實施例中第三預設溫度也可以設定為其他數值，例如為610℃。接下來，控制模組140可以根據此溫度差來調整冷卻時間，例如控制模組140可以設定上述的溫度差每增加(減少)x℃時，增加(減少)y秒的冷卻時間，其中x與y為實數，並利用內插法來計算出冷卻時間。舉例來說，若溫度差為+40℃，x為80，y為1，則需要增加40/80=0.5秒的冷卻時間。然而，在其他實施例中控制模組140也可以將溫度差代入一方程式來計算出需要補償的冷卻時間。此外，控制模組140也可以設定冷卻時間的上限與下限，避免在補償後的冷卻時間超過上下限。例如，上限可以定為12秒，而下限可定為8秒，但本發明並不在此限。 In some embodiments, the difference between the first preset temperature and the second preset temperature in Table 1 above is large, so that the cooling time can be compensated for the case of the medium target temperature. Specifically, if the target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, the control module 140 calculates the target. A temperature difference between the temperature and the third preset temperature. The third preset temperature is between the first preset temperature and the second preset temperature, for example, 570 ° C, which is the intermediate value of the medium target temperature range, but in other embodiments, the third preset temperature It can also be set to other values, for example, 610 ° C. Next, the control module 140 can adjust the cooling time according to the temperature difference. For example, the control module 140 can set the temperature difference to increase (decrease) x ° C, increase (reduce) the cooling time of y seconds, where x and y is a real number and interpolation is used to calculate the cooling time. For example, if the temperature difference is +40 ° C, x is 80, and y is 1, then a cooling time of 40/80 = 0.5 seconds is required. However, in other embodiments, the control module 140 may also substitute the temperature difference into a program to calculate the cooling time that needs to be compensated. In addition, the control module 140 can also set the upper and lower limits of the cooling time to avoid the cooling time after the compensation exceeds the upper and lower limits. For example, the upper limit may be set to 12 seconds, and the lower limit may be set to 8 seconds, but the present invention is not limited thereto.
圖2是根據一實施例繪示冷卻方法的流程圖。請參照圖2，在步驟S201中，在目前軋延材料的尾端通過層流冷卻區以後，根據目標溫度取得對應上噴水模組與下噴水模組的冷卻模式。在步驟S202中，根據下個軋延材料的厚度計算出冷卻時間。在步驟S203中，根據冷卻模式與冷卻時間來控制上噴水模組與下噴水模組。在一些實施例中，步驟S201與步驟S202也可以交換。然而，圖2中各步驟已詳細說明如上，在此便不再贅述。圖2中各步驟可以實作為多個程式碼或是電路，本發明並不在此限。此外，圖2的方法可以搭配以上實施例使用，也可以單獨使用。換言之，圖2的 各步驟之間也可以加入其他的步驟。 2 is a flow chart illustrating a method of cooling, in accordance with an embodiment. Referring to FIG. 2, in step S201, after the tail end of the current rolling material passes through the laminar cooling zone, the cooling mode corresponding to the upper water spray module and the lower water spray module is obtained according to the target temperature. In step S202, the cooling time is calculated based on the thickness of the next rolled material. In step S203, the upper water spray module and the lower water spray module are controlled according to the cooling mode and the cooling time. In some embodiments, step S201 and step S202 may also be exchanged. However, the steps in FIG. 2 have been described in detail above, and will not be described again here. The steps in FIG. 2 can be implemented as a plurality of codes or circuits, and the present invention is not limited thereto. In addition, the method of FIG. 2 can be used in conjunction with the above embodiments, or can be used alone. In other words, Figure 2 Additional steps can be added between the steps.
本發明實施例提出的冷卻方法與軋延系統，可以根據目前軋延材料與下個軋延材料的產品規格(目標溫度與厚度)來機動性地調整噴水模組的冷卻模式與冷卻時間，可以兼顧節約能源與保護傳送輥的目的。 The cooling method and the rolling system proposed by the embodiments of the present invention can flexibly adjust the cooling mode and the cooling time of the water spray module according to the product specifications (target temperature and thickness) of the current rolling material and the next rolling material. Take into account the purpose of saving energy and protecting the transfer roller.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.
S201~S203‧‧‧步驟 S201~S203‧‧‧Steps
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105103044A TWI565540B (en) | 2016-01-30 | 2016-01-30 | Method for cooling roller of run-out table area and rolling system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105103044A TWI565540B (en) | 2016-01-30 | 2016-01-30 | Method for cooling roller of run-out table area and rolling system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI565540B true TWI565540B (en) | 2017-01-11 |
| TW201726272A TW201726272A (en) | 2017-08-01 |
Family
ID=58407855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW105103044A TWI565540B (en) | 2016-01-30 | 2016-01-30 | Method for cooling roller of run-out table area and rolling system thereof |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI565540B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201422326A (en) * | 2012-12-07 | 2014-06-16 | Nippon Steel & Sumitomo Metal Corp | Apparatus for cooling hot rolled steel sheet |
| TW201434547A (en) * | 2013-03-13 | 2014-09-16 | China Steel Corp | Tracking method for rolled steel strip tailing end position |
| TW201524627A (en) * | 2013-12-26 | 2015-07-01 | China Steel Corp | Method for rolling steel band |
| TW201532695A (en) * | 2014-02-25 | 2015-09-01 | China Steel Corp | Error detection method for detecting a steel strip tail |
-
2016
- 2016-01-30 TW TW105103044A patent/TWI565540B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201422326A (en) * | 2012-12-07 | 2014-06-16 | Nippon Steel & Sumitomo Metal Corp | Apparatus for cooling hot rolled steel sheet |
| TW201434547A (en) * | 2013-03-13 | 2014-09-16 | China Steel Corp | Tracking method for rolled steel strip tailing end position |
| TW201524627A (en) * | 2013-12-26 | 2015-07-01 | China Steel Corp | Method for rolling steel band |
| TW201532695A (en) * | 2014-02-25 | 2015-09-01 | China Steel Corp | Error detection method for detecting a steel strip tail |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201726272A (en) | 2017-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103949494B (en) | Eliminate the control method that hot-strip finish is dampened | |
| TWI565540B (en) | Method for cooling roller of run-out table area and rolling system thereof | |
| RU2679321C2 (en) | Adjustment of a target temperature profile in strip head and end before cross-cutting of metal strip | |
| JP2009195925A (en) | Hot rolling method, hot-rolled metal band and electric resistance welded tube | |
| JP2005270982A (en) | Method for controlling cooling of material to be rolled in hot rolling | |
| KR101435042B1 (en) | Method for controlling descaler of roughing mill | |
| JP6008142B2 (en) | Hot rolled steel sheet winding control method and winding control apparatus | |
| JP5487652B2 (en) | Temperature control method in hot rolling | |
| JP6299673B2 (en) | Rolling control apparatus and method | |
| JPWO2020158284A1 (en) | Rolling method of steel sheet and manufacturing method of steel sheet | |
| JP2008114230A (en) | Method for controlling temperature of rolling material in hot rolling, and hot rolling method using the same | |
| JPH0818057B2 (en) | Control method of material input pitch in thick steel plate rolling line | |
| KR101449186B1 (en) | Apparatus and method of controlling descaler | |
| KR101439777B1 (en) | Apparatus and method of controlling finishign mill delevery temperature using interstand spray | |
| JP2015024417A (en) | Plate width control method and plate width control device | |
| KR20130117519A (en) | Apparatus and method of controlling temperature of rougher deilvery based on cooling causes | |
| KR100943803B1 (en) | Apparatus for controlling slab sizing press of hot-rolling process and method thereof | |
| KR101310831B1 (en) | Apparatus for detecting position of hot rolled steel sheet in accelerating cooler | |
| JP7141995B2 (en) | Hot-rolled steel sheet manufacturing method and hot-rolled steel sheet manufacturing system | |
| KR20130128820A (en) | Method for dividing hot rolled strip and system thereof | |
| KR101435030B1 (en) | Rolling control method of finishing mill | |
| KR101412385B1 (en) | Conttrol method for slav thickness | |
| KR101602864B1 (en) | Method and apparatus for processing rolled materials in continuous hot rolling equipment | |
| KR101330548B1 (en) | Apparatus for adjusting skewness of hot rolled steel sheet and method thereof | |
| JP3829746B2 (en) | Manufacturing method of hot-rolled steel sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |